but ,by decrypting the word 'dtovzm' i am getting 'dtovz' only.
here the the padding character is 'myson'.
the word containg last letter 'm' is not decrypting ,please help me why it is not decrypting .......

RTRIM (<c1>,<c2>) function takes two arguments, where c1 and c2 are character strings. This function returns c1 without any trailing characters that appear in c2. If no c2 character are triling character in c1, then c1 is returned unchanged. c2 defaults to a single space.